OOPS concept and collections in java

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OOPS concept in Java refers to Object-Oriented Programming principles like inheritance, encapsulation, polymorphism, and abstraction. Collections in Java are data structures used to store and manipulate groups of objects.

OOPS concepts include inheritance (e.g. class B extends class A), encapsulation (e.g. private variables with public methods), polymorphism (e.g. method overloading and overriding), and abstraction (e.g. abstract classes and interfaces)
Collections in Java include List (e.g. ArrayList, LinkedList), Set (e.g. HashSet, TreeSet), Map (e.g. HashMap, TreeMap), and Queue (e.g. LinkedList, PriorityQueue)
Collections framework provides interfaces (e.g. List, Set, Map) and classes (e.g. ArrayList, HashSet) to work with collections of objects in Java

OOPS concept and collections in java

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